Update ghcr.io/fosrl/gerbil Docker tag to v1.4.0

pangolin/compose.yaml

@@ -14,7 +14,7 @@ services:
 
   gerbil:
     container_name: gerbil
-    image: ghcr.io/fosrl/gerbil:1.3.1
+    image: ghcr.io/fosrl/gerbil:1.4.0
     restart: unless-stopped
     depends_on:
       pangolin:

portainer-agent/compose.yaml

@@ -1,7 +1,7 @@
 services:
   portainer-agent:
     container_name: portainer-agent
-    image: docker.io/portainer/agent:alpine@sha256:a5a7e48b29410128699c2001a86e234c76d8a8381e3e5f1d8cc83531112e78fc
+    image: docker.io/portainer/agent:alpine@sha256:d8c70d6c1174248796827182abb1ea8f9ea4869b32967af694cf472c3ec2c2a1
     restart: unless-stopped
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock